Results 41 to 50 of about 8,979 (206)
Wideband Spectrum Sensing in Cognitive Radio Networks
, 2008 Spectrum sensing is an essential enabling functionality for cognitive radio networks to detect spectrum holes and opportunistically use the under-utilized frequency bands without causing harmful interference to legacy networks.
Cui, Shuguang +3 more
core +1 more source
Resource Allocation Frameworks for Network-coded Layered Multimedia Multicast Services [PDF]
, 2014 The explosive growth of content-on-the-move, such as video streaming to mobile devices, has propelled research on multimedia broadcast and multicast schemes.
Chatzigeorgiou, Ioannis +2 more
core +2 more sources
Reconfigurable Acoustofluidic Microvortices for Selective Microcargo Delivery
Advanced Science, Volume 13, Issue 16, 18 March 2026.This work introduces a frequency‐encoded, reconfigurable acoustofluidic system that overcomes the low throughput and poor selectivity of conventional micro‐delivery methods. By exploiting discrete microbubble resonances to program adaptive microvortex modes, the platform enables real‐time switching and selective guidance of microscale payloads through ...
Lei Wang +6 more
wiley +1 more source
The Optimal Subchannel and Bit Allocation Problem for OFDM [PDF]
, 2006 The advantages of the orthogonal frequency division multiplexing (OFDM) are high spectral efficiency, resiliency to RF interference, and lower multi-path distortion. To further utilize vast channel capacity of the multiuser OFDM, one has to find the efficient adaptive subchannel and bit allocation among users.
Taehyung Park, Sungbin Im
openaire +1 more source
In situ biomimetic materials for dentin repair
BMEMat, Volume 4, Issue 1, March 2026.This review primarily discusses the role and clinical application of key biomimetic materials for in situ dentin repair, providing a feasible foundation for future material and performance optimization in situ dentin regeneration. Abstract Dental defects, ranking among the most prevalent diseases globally, pose a serious threat to human health, with ...
Jingjing Deng +3 more
wiley +1 more source
Analysis Framework for Opportunistic Spectrum OFDMA and its Application to the IEEE 802.22 Standard
, 2012 We present an analytical model that enables throughput evaluation of Opportunistic Spectrum Orthogonal Frequency Division Multiple Access (OS-OFDMA) networks.
Grønsund, Pål +3 more
core +1 more source
Framework for Task Offloading in O‐RAN Architecture for Heterogeneous Computing Applications
Transactions on Emerging Telecommunications Technologies, Volume 37, Issue 2, February 2026.This work proposes a task offloading framework in ORAN architecture, optimizing computational assignment across user devices, edge cloud, and regional cloud. By efficiently selecting processing nodes and allocating computational and radio resources, it minimizes delay while accommodating diverse latency requirements for gold, silver, and bronze‐tier ...
Samira Taheri +3 more
wiley +1 more source
Game Theory Based Energy-Aware Uplink Resource Allocation in OFDMA Femtocell Networks
International Journal of Distributed Sensor Networks, 2014 Femtocell is a promising technique not only in operator networks but also in having potential applications for industrial wireless sensor networks. In this paper, we investigate energy efficient uplink power control and subchannel allocation in two-tier ...
Jun Zhao +5 more
doaj +1 more source
Revisiting Adaptive Frequency Hopping Map Prediction in Bluetooth with Machine Learning Classifiers
Energies, 2021 Thanks to the frequency hopping nature of Bluetooth, sniffing Bluetooth traffic with low-cost devices has been considered as a challenging problem. To this end, BlueEar, a state-of-the-art low-cost sniffing system with two Bluetooth radios proposes a set
Janggoon Lee, Chanhee Park, Heejun Roh
doaj +1 more source
IET Communications, Volume 20, Issue 1, January/December 2026.This paper proposes a quality‐based incentive mechanism for federated learning (FL) in Internet of Things (IoT) systems using a Stackelberg game framework. The mechanism rewards clients based on the quality of their uploaded models, ensuring fairness and motivating higher‐quality contributions.
Qinchi Li +5 more
wiley +1 more source